Receptacle for electric lamps.



PATENTE?) JUNE 19, 1995.

AP. H. JABHNIG. RBCEPTAGLB EUR ELECTRIC LAMP@ APYLIOATIDN 'IXLED MY. 1964.

3 SHEETS-SHEET PTENTED JUNE 19, 1906.4

VAE, H, JABHNIG. RBGEPTAGLE POR- ELEGTRIG LAMPS,

APPLmA'rmR HLED mn. 1904,

3 SBBBTS-SEEET 2.

PATENTBD JUNE 19, 1906i YP. H. :Amma ,RECBFTAGLPGR mamme LAMPS.

4 'Annemiek uns@ xu4.1'ao4.

s SHEETS-amm s.

rangement ofcovers, o't' porcelain or other similar material, to rotect and cover up the contacts or termina plates after connection with the supply or lead wires has been made, said covers being preferably identical in sha )e and size, so as to be interchangeable, an beingsecured to the receptacle, preferably by means of screws passing through said receptacle into the base, each screw en-4 gaging a nut which is countcrsunk into the base of said receptacle; eleventh, to provide an arrangement of porcelain shell or iolding portion of the receptacle of such shape that the portion of said shell which extends above the metal screw-shell for the lamp will act as a rain cup or shedder and will tend to shed moisture away from said screw-shell, the por tion being also designed to receive a rubber or other suitable gasket to thereby provide a perfect water )roof connection between the porcelain Shell and the lamp twelfth, to provide a means of sealing with a suitable waterproof and insulating coni ound the space bctween the metal screw-s icll and the porcelain shell or holding portion of the receptacle to prevent the entrance of moisture into the space between these parts; thirteenth, to countersink the connectin -strips and screw portions in the back of tie receptacle and coverin these countcrsunk parts with a waterproo insulating compound, that these live. parts of the device are not exposed to the atmosphere or' to accidental contact; fourteenth., to .rovide an improved arrangement of the lea or supply wires entering the said receptacle, whereby the strain is taken up entirely by the procelain base of the receptacle and is removed from the terminal plates and binding-screws; fifteenth, an arrangement of projections or extensions u on the base of the receptacle to produce a c earance between the base of said receptacle and its su porting structure, thereby preventing the col ection of moisture between the base of the receptacle and its supporting structure, which would tend to impair the life of the device, the said space allowingfor a free access of air back of the receptacle and keeping it perfectly dry and free from moisture at all tunes, and, finally, to provide a novel design of weatherproof receptacle for the princi )al purposes above enumerated which is sulbstantial, neat, and shapely and is especially adapted for protecting incandescent-lamp sockets without otlering an obstruction -to the light or in any way diminishing the lighting power of such lamps.

With the various objects of the present in vention in view the saine consists in thc novel construction of Weatherproof reccplaclc and lam -socket hereinafter more particule rtv set fort and, furthermore, this invention ionsists in the various arrangements and conilde nations of devices and parts, as well as in thi` details of the construction of the said parts, all of which will be fully described in thc fol' lowing specification, and then iinully embodied in the clauses of the claim, which are appended to this specitication and l'orin ai? csscntial part of the saine.

The invention is clearly illustrated accompanying drawings, in which Figure l is aside elevation and Fig. 2 a top or plan view, of a receptacle and lamp-socket embodying the principles ot' this invention. Fig. 3 is a top or plan view ol` thc dc\ ice with the said porcelain or other suitable covers rcnioved; and Fig. 4 is a longitudinal vertical section taken centrally through Fig. 2 of the drawings, said view being made upon an cnlai'ged scale. Fig. 5 a bottom vico ol' the device, illustrating onc arrnngcincnt of the projections upon thc base of thc receptacle, which provide for thc air-space or clearance, the waterproof insulating compound having been omitted from the countersunk portions in the said base to clearly illustrate the arrangement ot the connecting-strips and the ends of thc screws in the count-ersunk nuts. Fig. is a detail vertical section taken on line 6 (i in said lfig. 5 looking in tlnA direction of the arrow nr, and Fig. 7 is a similar vertical section taken on line 7 7 in said Fig. 2 ofthe drawings looking in thc direction of the arrow 'y in said Fig. 12. Fig. 8 is a pcrspc( tivo view of one of thc tcrniinal or contact platcs and its projection. Fig. El is a plan or top view of a rcccptaclc and hun i-socket of a inodiiied construction, but still embodying the leading lent uics ol' inv present invcntion. Fig. 10 is a longitudinal vertical section of the saine, taken ccutrallv through said Fig. 9;

in thc and Fig. 11 is a bottoni view of the device detached troni its se arable base-cover, with the waterproof insulating compound oniittcd from thc countcisunh portions of said rcccptacle.

Similar characters of rct'eicncc are ein ploycd in thc nl)mw-dcscribcd views to indicate corresponding parts.

Referring now to Figs. l to 8 of the dra\\- ings, the reference character l indicates the complete receptacle for an electric lmnp, the saine consisting, essentially, of a bust E, which is provided with an upward!) -projfncting receiving and hold ingportion Il, in which l have arranged andsecured, prciciablr in thc manner hereinafter more particularly Aset forth, a inctal screw sockel or shell t 'lhc said base 2, as will be seen froni lhc scri-ral igures oi the drawings, is prcfcrulili made with a suitable arrangement of projccl ion\ or foot-pieces, as 5, at the cndsof thc buse und with a central projection 6, thus providingl n clcarancebct weenthc liase2 and a supporl lug structuri to which thc receptacle is to lic n i tachcd, as will bc clearly understood. 'lhe said (entrai projection 6 as well as the con tiguous body portion of the said buse nre inadc with a duct 7, which coninionicates with an enlarged opcn or receiving portion 8 in the upper part of the seid bese, the seid receiving portion 8 being in communication with the inner cylindrical art of the receiving or holding portion or she l 3, es clearly indicated in Fio. 4 ofthe drawings. As shown more especially in said Fig. 4, the lower portion of the said duct 7 may be closed by a thin wall 9 for eflectually closing the seid duct 7 against the entrance of moisture when not in use, but which thin wall may readily be broken away to permit of the arrangement of e fastening-screw in Seid receiving portion S and the duet 7 and to be screwed into the supper-tin structure upon which the receptacle is toghe fastened. Extending from the upper surface portion 10 of the said base 2 is on annular shoulder or projection i 1, formed with an annuler recessed portion o r depression 12, in which I have arrnnv'ed e. center contact or ring` 13, of any suitable metal, but preferably of copper. The said center contact or ring 13 is suitably secured in the said recessed portion or depression 12 by menos of the two sere'ws 14 and l5, one of which, es i4, is n contact-screw end has its head i6 erranged in n hole or perforntionin e eonneoting-strip 17. The seid annuler shoulder or projection i1 is made to preferebly'ertend above the upper surface of the center Contact or ring 13 when in place, so as to provide a, suitable insulating wall or barrier between the seidcenter Contact and tlie'rnetai portions of the screw socket or shell 4, within the said holding or receiving slieil 3, and thereby giving as much separation between the points of opposite polarity of tbe ports es is possible in a receptacle designed for tile purposes of my present invention. iteferring now to Figs. 4 and 6 oi the drawings, it will be seen that the said rnetel screw socket or shell "i is provided'with the screw portion 1S, of the usual shepe,'for the reception of the screw end of 'en incandescent lomp in the well-known manner and is provided with a centrally-perforated part i9, resting u. pon the surface portion 1U of the bese Z and being secured in place by Ineens of a. pair of screws 2() and 21, one of which, es 20, luis its lower end connected with a' nut 22, suitably nrranged in a socket 23 in the seid bese 2, and the said other screw 21, which acts as a contectscrew, extending through a. duct 2@ in smid base 2 end boing secured to e second oonnecting-strp 25, ne illustrated in Figs. 5 end t5 of the drawings. The said connectingstrip l? is arranged in a, depression or eeuw tersnnlr portion 26, and the said connectingstrip 25 is likewise arranged in e depression or countersunk portion 27, botlibeingiorniod in the bottoni of the said bes-'e 2, es clearly illustrated. The seid base 2 is provided inn its upper portions on op osito sides of the reoeivinr or holding shell7 or portion 3 with suitnbl depressions 28 and 29, forming poele ets or chambers for the arrangement in'eurh pocket or cllember of n Contact or terminal plate 30. Each Contact or terminal plate 30 is mede with a suitable shoulder or projection 31, against which and between the heed 32 of e bindin -screw 33 is arranged end secured, prefere ly by means of solder 34, the lead or 'supply wire 35, each screw 33 being passed through e screw-hole 36 in each plate 30 and extending into e ductt 7 in the bese 2, substantially es shown. Euch contact-plete 3() is also provided with on extension or projection 3S, preferably of a s( unl-e or reotanguiar amiss-section, the seid extensions or projections 38 passing through ducts 39 and 4i) sind connecting, respectively, with the connecting-strips i7 und 25. One preferred method of positively connecting the end portions of the said projections or extensions 3S to the seid connecting-strips 17 :rnd 25 is to split the seid end portions, and thereby rovidini suitable lingers or prongs 4i, wlliiell ni'ter lining passed through suitnblpdisposed perforetions or other receiving portions oonneeted with the respective connerting-Strips 17 and ereV bent over,substantinllyes illustrated Yin Figs. 4 sind 6, to provide n secure fastening end e iwrfect, connection, es will be clearly evident. .As en extra precautionV these parte may be made doubly secure by the use of solder 42 'For securing said fingers or lugs 4] against the seid connectingstrips 17 and 25, es clearly illustrated` Suitablysinned covers 43 are arranged over each poe et or chamber und 29 to protect or cover up the Contact or terminal pletesr@ eiter connection lies been properlyT mede with the wir 255, the covers 43 being also mede to cover the leeds of duets 44, which extend laterally from tbe .said pockets-or chambers on opposite Sides of the receptacle. The .seid covers l? nre two in number for each receptacle sind are secured to seid roeepteele by means of screws 45, passing tlirougli duets itl in tbv bose 2, and beve their ends engaging n. rountersunk not i? in 'J ro ille bese, ns reprrsentwl in lilo-s. 5 und 7 of the drawings.

ln practice the furious ports of the receptacle, well as the rovers 43, ere made of porrelnin or other siinilm' insulating mete tiel, while tbe lamp or screw socket or shell 4 and the center contact i3, 'the Connecting .stripe i7 and 25, the contact terminal plaies 3G, end the various screws ere ell :mole of motel, the exposed parte arranged in tire various depressions 2G and B7 and other screw-receiving sockets and duets ,inthe base 2 being covered over with e suitable waterproof insulating compound or cement, as 18, to prevent any exg'aoeed metal parts .which niiglit otherwise be exposed to the deteriorating; effects of moisture, dempness, or we` ter :lne to rein and snow. A sealing, es 49, of e suitable Waterproof insulating compound or cement may also be arranged in the space ICS formed by the outer' cylindrical surface of thc screw socket or shell 4 and the inner isurface of the receiving or holding member 3 of the, receptacle to prevent the entrance of inoisture into the. said space the" these live parts of the device may not be exposed to the atH mosphere or to accidental colitact. The said porcelain shell or holding member 3 may bc of such shape that the portion projt-ir-.ting above the screw socket or shell 4 shall form :t rain-cup or rain-shodder 5l),Y whiclrtends to shed moisture and rain away from the said screw-socket 4 when. in use. A suitable roceivcr is thus also provided in which muy bc placed a rubber or other suitable gasket to provide a perfect waterproof connection between the said porcelain receivingl or holdingl portion 3, the metal socket or shell 4, and that porti on of the lamp which is to be screwed into the said socket or shell 4.

From the foregoing description it will be seen that I have produced a si1nplyeonstrueted lixture or receptacle for incandes cent electric lamps which is perfectly weather and moisture prooi` and in which all live ports are thoroughly concealedI so as not to be exposed to the injurious etl'ects of moisture and dampncss or to accidental contact. Another great advantage is that, the leadwires extending through the receptacle in the manner illustrated, the base takes up the strain from said wires, and such strain is removed from the terminal plates and the binding-screws employed with the said receptacle.

ln addition to the central opening or hole 7 for the reception of u fastening-screw for securing thc receptacle to a supporting structure the said base .Z may be provided with other screw-receiving soelwts 51, as represented in Figs. 3 and 7, for [he reception of fastening-screws, the said receiving-sockets 5l being closed att the bottom of the base 2 by a thin wall 53 tor otl'ectunlly closing eat-h socket 51 against the entrance o1' moisture to preserve the weatherproof feature of the device, but which walls 52 can be broken away when it is desired to employ fastening-serews with the said sockets 51.

l In Figs. E), l0, and I1 of the drawings l have ilhistrated e modification of the receptacle, the receiving-or holding portion or shell 3 of the device in this oase being provided at or near the top with holding lugs or ears 53, formed with suitable receiving-open- 'ings 54, preferably in the form of slots, for thc reception of holding screws or bolts for attaching thc receptacle to n inetul lfm-eplatc 56 or other suitable `supporting structure substantially as illustrated. Said ears or lugs 53, an has been stated, are preferably slotted to allow for variations in spacing the screw-holes in said lince-plate 56. rl`his torni of receptacle is designed for 1netai-faced` electric signs and decorations, the reccivinbj or holding portion or shell 3 havin r en annular ol'l'set .57',litted in an opening in tile Pace-plate 5h, its represented in l? ig. 1U, whereby the entire receptacle is concealed behind the face of the supportingr striu'turc, which not only conceals the receptacle, but also all the leadwires. lith such receptacles electric signs may bc constriufted with a hice-plate prov vided with vari(nisly-disposed lamp-receiving openings, and the letters and other ornamental ell'ccts thus obtained will be selfcon tai ned and will require no additional supporting structures for securing the various receptacles in position, The general construction of the porcelain receptacle and the screwstnxliet 4 is the saine as that previously described in connection with Figs, l to 7, i11- elusive; but in this ease the writer contact 13 is held in place b v a centroily-arranged contact-screw 5S, which is si.` i connected with a contact-plate 59, arrange* in a recess 61 in the bottoni of the base of :he receptacle and provided with a binding screw 60. W'ithin a second recess (3:5 in said base is fm other contactplate 63, provided with a -hi 1L niger-row 64, andone of the screws 65, 1' means of which the screw socket or shell et secured in position, having its lower end con nected with the contact-plate 63, as clearlillustrated in said Fig. 1]. The manner of attaching the 'lead-wires and the manner of protecting the said contact-plates 59 and 63 against moisture and accidental ,contact b means of' an insulating compound 66 1s clearly represented in Fig. Lt] of the drawings. A suitable back or base plate 67 may also be secured against the lower surface of the base of the receptacle by means of screws (i8, adaptedl to be secured in the holes 69 in the buse, or the said backplate G7 may be Secured in position by other suitable fastening ineens, as will be clearly evident.

l' urn fully aware that changes may be made in the various arrangements and cornbinntions of the devices and parts, as well as in the details of the constructicm of the said parts, without de|nirting from the scope of my present invent ion. llence I d0 not limit my in ventimi to the exact urralwements and combinations of the devices and` their parts as described in the foregoing specification and ns illustrated in the accompanying drawings; nor do l. confine myself to the exact details ol: the construction of thc said arts.

llaving thus described myinvention, what I elziiin is-- l. nu electric-lmnp receptacle comprising a hase and an upwartily-projecting receiving and holding portion all of insulating material integral with said base, a metal screwsocket in said holding portion, metal connections for nnrhing electrical Contact, said` connections being all of them arrangcd and concealed directly in the body of said rece, tacle to protect them against moisture an accidental contact, and coverlates upon said body and at thc sides of son holding portion arranged to cover some of said connections, substantially :is and for the purposes set forth.

2. An electric-lomp receptacle comprising n bose and on upwardl projecting receiving and holdin portion ol of insulotin rooterial integra, with sftid base, o mota scrcwl socket in said holding portion, metal connoc-V o bose and on upwor( ly-proz1ecting receiving tions for making electrical cont-oct, scid connections being all of thorn arranged and concealed directly in the body of scid receptacle, un insulating com onnd arranged over the" exposed )ortions o said connections to con'-V eoal snid connections and rotect them against moisture ond accidents)H Contact, and cover-platos upon seid body and et tho sifios of said holding` portion arranged to @over some of said connections, substantially as and for the purposes set forth.

8. An electric-lomp receptacle comprising n baise sind im upwardly-projnoting receiving and holding portion all of insulating nini-oriol integral with scid bose, and thc said has@ being provided in its lower surface with rcceiving-dcprcssions, c metal screw-socket in scid holding portion, n, metal connectingstrip in each recciving-depression, metal con ncctions for making electrical Contact with said stri s, scid connections being all of them arranco( and concealed directly in the bodyY of' said receptacle, and cover-plates upon said body and nt the sides oi scid holding portion arranged to cover some of scid conncctions, snbstnnticlly as sind for the purposes set forth. i

4. An electric-lamp receptacle comprising a bose and on upworally-projecting receiving and holdimT portion all of insulating matoriftl iritogrolwitii said baise, sind tho said hose being provided in its lower surface with ro oeiving-deprcssiiins, n metal ccrcwsocket in said holding portion, a motel connectingstrip in noch roceiving-dopression, nictal connections for marking electrical contact with scid strips, sind connections being all of thoni errang-cd ond concealed directly in thc body of the rocoptnclc, on insulating compound nrmngod over said connesting-strips nud the exposcr'l portions of sind connections to conccnl thc said strips und*connections ond protect them ogninst moisture sind nccidcntnl contact, ond covcnplntes upon said holly ond ot the sides of scid holding pm'tion arranged to cover somo of said connections, sulnstnnticlly os ond for thc pnrposcs set forth.

5. An electric-lomp receptacle comprising o hose ond :in 'upwardlv-projmitiop; receiving and holding portion all of insulating meis#- riol integral with scid huso, and thc saiii'hnse hcingprm'ided in its lowcr snriorc with rw ceiving-depressions, :i metaal screw-socket in thc said holdingr;r portion, n motel connectingstrip in noch rcceiving-depression, motel termincl plates, e projection. extending from oooh terminal lote, e split or bifurcoted end' portion on oec projection secured to a con neming-strip, all arranged and concealed directly in the body of said receptacle, and cover-plates upon scid body and at the sides of saidnhoiding portion arranged to cover some Voi said connections, substantially as 'and for the purposes set forth.

6.An clectricdcm receptacle comprising ood holding portion all of insuloting :mate-5 rici integral with scid bose, and the said base being providorl in its lower surface with receiving l sions, a nictnl scrowesocket in tho sidiilding portion, n metal connectingstrip in each receiving-deprcssion1 metal terminal plates, a projection extending from euch terminal alato, c split or bifurcated end portion on each projection secured to a connecting-strip, said connections boing all of thorn arranged ond concealed dircctlyin the body of said receptacle, nn insulating coinpound nrrengedovor said connecting-strips and the exposed portions of thc connected parts to conrcnl ond protect the some against moisture and accii'leniol contact, and covorlotes upon said hotly and ot thc sides of scid liolding portion arranged to ooversonie of said connections, substantially as und for tho purposes sot forth.

7. An electric-lomp receptacle comprising a base and an ni'iwardly-projecting receiving and holding portion for the reception of o lomp, said hase and holding portion being integrally connected and inode of insulating material, a center contact in said holding por tion, sind an insulating-woll integrally con nocted with said hose und cxtonilin r about the center contact to provide o barrier hetwecn the points of opposite polarity when in electric circuit, substontclly os sind for tho purposes Set forth.

8. ln on electric-lomp receptoclc, n hase ondn'n npwnriily-projecting receiving and hoiiling portion for the rcoeption of o hun), said bose and holding pix-tion being integrollr connected end inode ol' insulating motorio ol orrin lr-slnipcd proj cction intcgrciiy connected wit i and extendiiw upwardly from tho said bos-c into .sn-id hol( ing portion, the scid ring-sho ed projection lacing provided with on yonnldar recess, sind c center contact orrnngod in the scid recess of scid ring-shaped projection, und scid' rojcction forming an insulating-woll crono( the scid renter contact, snlistentinlly no and for tho purposes set forth.

i). ln nn electric-lmnp receptacle, c beso and en upwnrilly-projocting 'receiving ond holding portion for the rccoption of e lamp, said hose and holding portion boing integmllf connected and made of insulating materiaP of c, ringshnpcd projection inte frlly connected with and extending upwar ly from the IIS said bese into seid holding portion, the said ring-shaped projection being provided with an annu er recess, and a center Contact airranged in the seid recess of sn id ring-shaped rejection, snid projection forming an insuating-Wall nround the said center Contact, and the seid bese and said ring-shaped projectionbeing provided with e festeniii r-screwreceiving means, substantially es an(` for the purposes set forth.

10. In an electric-lamp receptacle, the coinbination, with a base and an upwardly-projecting receiving and holding portion for the rece tion of a lamp, both the seid bese and hol ing portion being integrally connected and made of en insuletin materiel, the said base being provided Wit receiving-depressions, anetel connecting-strip in each depression, a pair of terminal plates, a projection connected with each terminal plate, and a split end portion on each projection connected with a connecting-strip, said connecting-strips and terminal lates being all of them concealed in said lisise, and e. coverplete detachebly arranged over each receiving-depression, substantially es and for the purposes set forth.

11. in anelectric-larnp receptacle, the combination, with a, base and an upwardly-projecting receiving and holding poi tion for the rece tion of e lamp, both the said base and hol ing portion being integrally connected and mede of an ineulatin material, the said base being provided wit receiving-depressions, e metal connecting-strip in cach depression, a, pair of terminal plates, a projection connected with each terminal plate, e split end portion on each projection connected with e connecting-strip, and a` solder for securing each split portion to its connectingstrip, seid connecting-strips and terminal lates being all of them concealed in said lisse, and a, cover-plate dctachahlv arranged over each receiving-depression, substantially as and for the purposes set forth.

12. [n an electric-lamp receptacle, the coinl'iinetion, with e. base and an upwardly-projecting receiving end holding portion for the rece tion of a lamp, both the said bese end hol( ing portion being integrally connected and mede of en insulating material, the said base being provided with receiving-depressions, e metal connecting-strip in each depression, a pair of terminal plates, a. projection connected with each terminal plete, .a split cud portion on each projection connected with a. connecting-strip, a solder for securing euch. split portion to its connecting-strip, and en insulating compound arranged over said conricfcting-strips and the exposed portions of the connected parts to conceal end protcct thc same against moisture and accidentel content, seid connecting-strips und terminal lates being all of them concealed in seid ase, end a. cover-plate detechebly arranged over each receiving-depression, substantially as and for the purposes set forth.

13. An electric-lamp receptacle Vcomprising e base and e holding portion for the reception of e lump, both the said hase and holding portion being mede of an insulating material, the seid base being provided with e pair of receiving-depressions in its lower surece, said hase being also provided with n pair of pockets, and with e connectin r-i'iuct ietwcen each pocket and ercceiving-z eprosnietel connecting-strip in each receiving-deressioii, a terminal plate and binding-screw in each pocket with wh ich a leed-wire extending through the pocket can be connected, n projection connected with each terminal plete, eachy projection extending through e duct to one of said depressions, and a` split end portion on each projection connected with a connecting-strip, substantially as and for the purposes set forth.

`i4. An electric-lamp receptacle comprising a. base and ai holding portion for the repxeption of e lmnp, both the said bese and materiel, the said bese being provided with a pair of receiving-(lepressions in its lower surface, seid hase heilig also provided with :i air of pockets, end with n coniiectiiig-dnel. lietween each pocket end zi. rccciving-depression, a. cover arranged over each pocket, n inotal connecting-stri i in each receiving-dcression, a terminal piatte and binding-screw in earch pocket with which a. lend-wire. cxtending through the pocket cnn he connected, e projection connected with cncli terminal plete, each projection extending through e. duct to one of seid depressions, e split end portion on euch projection connected with a connectiiig-strip, und e solder for securing each split end portion to its connecting-strip, substantially us and for thepurposes set forth. i

15. An electric-lump receptacle compris- `ing e hnsc and a. holding portion for the reception of a lamp, both the seid base and holding portion licing mede of en insulating ninteriitl, the seid hase being provided with a mir ol.` rcrrciving-depressions in its lower surl'ecc, said base being also provided with u, pair of pockets, end with a, connecting-duct between each pocket and si rece.. lng-depression, a cover arranged over each pocket, e metal connecting-stri) In each receiving-deircssion, e. terminal plhite and binding-screw in euch pocket with which n. lend-wire extending through the pocket cen be connected, e projection connected with earch tcrniinel plete, each projection extending through n duct to one of said depressions, a s lit end portion on each projection connecte( with u, connecting-stri and an insulating compound zii-range over seid connecting-strips and the exposed portions of the connected ding portion being niede of en insulating' sion, e, cover arranged over each pocket, e l

IIO

parte to conceal and protect the seme against moisture and accidental contact, substantially as and for the purposes set forth.

1 6. An electric-lamp receptacle comprising e. bese and a holding portion, both niede from insuletin material, n. metal lampsocket in said iolding portion, seid metal socket having a central openin en annular projection extending from seidese through the seid central opening in said socket and into the said holding portion, seid projection being provided with en annular recess, e center contact in seid recess, said annuler projection extending above the seid center contact to provide an insulating-well, a pair of festening-screws in said base and attached to said center Contact, the seid bose being also pro- Vided with e pair of receiving-depressions, o.

connecting-strip in euch depression, one of seid connecting-strips making contact with one of seid screws, the seid base being further provided with e peirof pockets and a connecting-duct between each pocket end e. receiving-depression, o. terminal plate in each pocket, and e projection connected with eech terminal plate extending through e connecting-duct and having its free end. connected with a. connecting-strip, suhstantieiiy es end for the purposes set forth.

17. An electric-lamp receptecie comprising a base und e holding ortion, both mede from insulating meterla a metal lampsocket in seid holdin poiition, seid metal socket having eeentra. openin an enniilar proj eetion extending from seidase through the said central opening in said socket end into the seid holding portion said projection being provided with an annular recess, e center contest in said recess, said ennulnrprojection extending above the said center contact to provide en insulating-Woll, a pair of fasteningeerews in said base'end attached to seid center contact', the seid hase being l also provided with e. pair of receiving-doppen sions, e. connecting-strip in each depress on, one of said connecting-Strips melting Contact with one of said screws, the said bese being further provided with e pair of pockets and a. conncctingduct between each pocket and a. receiving-depression, n terminal plete in each pocket, end a projection connected with euch terminal plate extending through e connectf ing-duct and into a receivngdepression', end a split portion forming fingers et the free end ofreach projection, seid ingers being secured to e, connecting-stri substantially as and for the purposes set orth.

In testimony that I claim th invention set forth ahove l have hereunto set iny hand this 237th day of April, i994.

PAUL H. JAEHNIG.

Witnesses:

FREDK. C. FRAENTZEL, GEO. D. RICHARDS. 

